Grindstone



Aug. 27, 1940. w DANBACK 2,213,065

GRINDSTO NE Filed Jan. 24, 1939 2 Sheets-Sheet l INVENTOR. Mu. Efln/v'ancx fwaj Mmvfd ATTORNEYS Aug. 27, 1940.

W. E. DANBACK GRINDSTONE Filed Jan. 24, 1959 2 Sheets-Shea; 2

INVENTOR.

W pd Mm Z M% W ATTORNEYE Patented Aug. 27, 1940 UNITED STATES PATENTOFFICE GRINDSTONE Willis E. Danback, Tiffin, Ohio, assignor'to TheCleveland Quarries Company, Cleveland, Ohio, a corporation of OhioApplication January 24, 1939, Serial No. 252,648

3 Claims. (01. 51-167) The Present ntion relates to grindstones eludesthe two plates I2 and I3 and the rear conand more particularly to theframes thereof. nection e pl es and 5- In e p t An object of the presentinvention is the prostance, the plates I2 and Id are welded to the Ivision of a novel and improved grindstone or side member it while theplates l3 and I5 a e 6 grindstone frame which will be simple and weldedto the side member II. Each of these 5 rugged in construction andinexpensive to manuplates is provided with a plurality of bolt holes,facture. through the medium of which the plates are The inventionresides in certain details of conbolted together by means of bolts TheStruction and combinations and arrangements struction is such that theside members Ill and W of parts and further objects and advantages of Hcan b d s ed t facilitate S pp the invention will be apparent to thoseskilled in and. readily assembled when desired. An altertheart to whichthis invention relates from the native Construction i Shown in FigS- 8and 9 following description of the embodiment thereof wherein theConnections between the S described with reference to the accompanyinghers Ill and H merely consist f Single plates drawings forming a part ofthis specificati n, i and I8 welded to the opposite side members. whichsimilar reference characters designate This construction is preferredWhere there is no corresponding parts and in whi h; necessity fordismantling the frame.

Fig. 1 is a perspective view of a grindstone emhe grinding Stone W e A Sfi o a bodying the present invention; bular sleeve which in turn isfixed to a hori- 20 Fig. 2 is a side elevational view of the grindzontalshaft 2| rotatably supported in anti-fric- 20 stone shown in Fig. 1;tion bearings 22 carrried within bearing mem- Fig. 3 is a frontelevational view of the grindhere 23 deteehebly onnected as by bolts 24to stone shown in Figs. 1 and 2; a plate or member 25 welded to theupper part Fig. 4 is a section approximately on the lin of the sidemembers adjacent what might be re- 25 4-4 of Fig. 2; ferred to as theapex of the frame. Outside of 25 Fig. 5 is a section approximately onthe line the bearing members d at both d the 5-5 of Fig. 1; shaft 2! isprovided with cranks 26 and the Fig. 6 is a section approximately on theline Wheel A is p ed to be rotated y double 66 of Fig. 3; treadles 21,fulcrumed or pivoted in short tubu- 0 Fig. 7 is an enlarged View of aportion of Fig. lar members 28 welded to the front sides of the 30 1;and side members l0 and II. The treadles 2i are op- Figs. 8 and 9 areviews similar to Figs. 5 and 6 at v y con ted t the cranks y pitmans butshow a modified construction, 30, the upper ends of which are connectedto the Referring to the drawings, the reference char- Cranks 25 throughe medium of anti-friction acter A designates a grinding stone or wheelof ea s 3|. 5

conventional construction, preferably made of The grindstone Shown i thepreferred embodisandstone, rotatably supported in a, fram desment of theinvention also includes a bicycleignated generally by the referencecharacter B. ype s 32 fix d to a eat s ppor r rod 33 com- As shown, theframe B comprises two continuous p g a d tubular member welded totubular side members II] and II of general trithe upper plate I5 of theconnection between the 40 ngular shape as shown in the drawings, theside frames It and II at the rear of the grindsides of which are ofunequal length and the cori s stone- The seat supp 3 l arrie a ners ofwhich are rounded to give a more pleasing splash guard 34 adjustablysecured thereto y appearance. One of the longer sides of each of meansof a clamp member 35. An arm 36 the two side members I0 and II forms thebase bolted to a member 3'! welded to one of the side 5 and the grindingwheel is located between the members, in the present instance theright-hand upper parts of the side members which conv rge, member I I,carries a water cup 38 directly above as viewed in a vertical planethrough the axis of the grinding Stone- The e of the Side e rotation ofthe wheel, see Fig. 3. The side members Ill and. I I is slightly raisedintermediate t e bars I0 and II are connected together at opposite endsso that the grindstone will better set on 50 sides of the wheel. In thepreferred embodiment an uneven surface. While the side members ll] ofthe invention shown, both of these connections and II and the seat rodor support 33 are shown are identical and each includes two plateswelded as being made of round tubular material, it is to opposite sidemembers and detachably bolted to be understood that the material usedmay be together. As shown, the front connection insolid as well astubular and that the cross sec- 55 tion thereof may be other than round,for example, square, rectangular, triangular, angular, etc.

From the foregoing description of the preferred embodiment of theinvention, it will be apparent that the objects of the inventionheretofore enumerated and others have been accomplished and that asimple, rugged and inexpensive grindstone or grindstone frame has beenprovided. While the preferred embodiment of the invention has beendescribed in considerable detail, it is to be understood that theinvention is not limited to the particular construction shown but thatthe construction shown may be varied within the scope of the inventionand it is my intention to cover hereby all adaptations, modificationsand uses which come within the practice of those skilled in the art towhich the present invention relates and I particularly point out andclaim as my invention the following:

1. A grindstone comprising a frame including side members formed ofwelded-up tubular material, a grinding Wheel, means for connecting saidside members together including cross members at the front and rear ofsaid grinding wheel welded to said side members, bearing members forrotatably supporting said grinding wheel, brackets welded to said sidemembers on opposite sides of said grinding wheel, means for detachablysecuring said bearing members to said bra ckets, double treadles forrotating said grinding wheel, means for pivotally connecting said needlemembers to said side members, a V- shaped bracket made of tubularmaterial one prong Oi which is welded to said cross member at the frontof said grinding wheel, and a seat secured to the other prong of saidV-shaped bracket.

2. A grindstone comprising a frame including side members formed ofwelded-up tubular material, a grinding stone or wheel, means forconnecting said side members together including cross members at thefront and rear of said grinding Wheel welded to said side members,bearing members for rotatably supporting said grinding wheel, bracketswelded to said side members on opposite sides of said grinding wheel,means for detachably securing said bearing members to said brackets,double treadles for rotating said wheel, means including tubular memberswelded to said side members for pivotally con- ;necting said treadlemembers to said side members, a V-shaped bracket made of tubularmaterial one prong of which is welded to said cross member at the frontof said grinding wheel, and a seat secured to the other prong of said V-shaped bracket.

3. A grindstone comprising a frame including side members formed ofwelded-up tubular material, a grinding stone or wheel, means forconnecting said side members together including cross members at thefront and rear of said grinding wheel welded to said side members, saidcross members comprising two parts detachably secured together, bearingmembers for rotatably supporting said grinding wheel, brackets welded tosaid side members on opposite sides of said grinding wheel, means fordetachably securing said bearing members to said brackets, doubletreadles for rotating said grinding wheel, means for pivotallyconnecting said treadle members to said side members, a V-shaped bracketmade of tubular material one prong of which is welded to said crossmember at the front of said grinding wheel, and a seat secured to theother prong of said v-shaped bracket.

WILLIS E. DANBACK.

